Quick! Before the evidences melt.

This gives interesting results and is a bit faster than the 55-300mm, but because of its size, I haven't used much.
As you well know, this is a medium format lens, with a Pentacon 6 mount that has been adaptaded to M42 (as is common). Afaik, P6 can be adapted to any modern DSLR mount, since its registration distance is far greater.


IMGP3237 by eduardodourado, on Flickr


IMGP3236 by eduardodourado, on Flickr
Together with the similar (equal ?) Meyer Optik and a less often seen Hanimex, this is the 300mm F4 lens at the lowest price.

Because its medium format, the lens is large and heavy (~2.1kg). I have been able to take handheld photos with without to much hassle, but clearly this is made for monopod/tripod. Thats why it comes with an incorporated tripod colar, with an adaptor for standard (3/4 ?) screw, but allows even larger ones.


IMGP3238-2 by eduardodourado, on Flickr
The lens was bought at Cameratiks, in Edimburgh. I guess it was them that have repainted some bits of the lens (please see photos).


IMGP3244 by eduardodourado, on Flickr


IMGP3242 by eduardodourado, on Flickr

The body is in good shape generally. It has some small scratches, and some paint loss from rubbing. All expected with age.



The glass has no scratches that I can see, nor coating loss.


IMGP3241 by eduardodourado, on Flickr


IMGP3271 by eduardodourado, on Flickr
The lens has some dust specks inside, nothing major, hard to photograph. Should not, and as far as I've seen, do not show in the picture.

Here is a view of the lens, on a Manfroto 322RC head.


IMGP3251 by eduardodourado, on Flickr

The quality is quite decent, especially considering the price of the alternatives. The great drawback is the purple fringing, which this lens suffers allot, particularly at F4.



IMGP3248 by eduardodourado, on Flickr
With 19 blades, it lends itself to portraits and other uses of its good bokeh.

You can also check this article on my blog, with some birds pics, most using a 2x tc on top of the lens.

The lens comes with both caps.

Price is £100 shipped to UK (from Portugal).

I tried re-mounting the lens, to no avail. Brute force did the tricks and luckily didn't destroy anything.

Oh sh!t, Oh sh!t, Oh sh!t
I'm going to London in a week, I don't want to photograph everything with a 70-210mm (my only A2 lens).

Was what I thought when my adaptall-2 adapter would not come off my K10D.

I had heard of M42 adapters getting stuck, but never A2.
I had to make a lot of force to get it to come off, it was clearly the locking pin that was stuck.

A small javascript can easily email you a form on your website. Even if not and integrated solution, you can make buying easier that way. Just need to be able to edit a bit of the source code.

I wouldn't buy an image file, those interested in image files are looking at microstock agencies and the like. You'd have to have a very special image for them to deal with you particularly.

To sell prints, then maybe.

I would change your tittle to:
"I may have LBA, so I'm trying to find weaknesses in my lenses"
LOL, which is practically the heart of LBA.

Anyway, the gap I see is maybe a 70-200mm F2.8 and a fast telephoto 300mm+
My suggestion:
Sigma 10-20mm F4-5.6 EX DC
Pentax 16-45mm F4 DA - backup
3x 18-55 "kit" Lenses - sell/keep 1
Tokina 20-35mm F2.8 ATX Pro
Sigma 24-70mm F2.8 EX DG
Pentax 28-80mm F3.5-5.6 Film "kit" lens -sell
Pentax FA-50 F1.4
Pentax DA* 50-135mm F2.8 - sell
Pentax-K 55mm F1.8 (Manual)
Sigma 55-200mm F4-5.6 - backup
Sigma 70-300mm F4-5.6 - sell
Sigma 170-500mm F5-6.3 - sell
Takumar 135mm F2.5 (manual)
Osawa 200mm F4 (Manual) - sell
Sigma 105mm EX Macro
Tamron 90mm SP Macro F2.5 1:2 (plus 2x to make 180mm F5 1:1) (Manual)

Get:
70 - 200 mm F2.8
and
100-300mm F4
or
120-300mm F2.8
and
a TC 1.4-1.7
and
500mm F4.5

I tend to like and understand as abstract photography those images where if any subject is explicitly depicted, it is also clear that it is not the true subject or message of the photograph. I view it as a form of free reign to create photographs of a basic visual message: soothing, harsh, pleasant, soft, fun, etc.



IMGP3101 by eduardodourado, on Flickr

Doing abstract photography is rather fun, especially if you are looking only for pleasing or impact full aesthetics. There is the obvious bonus that it can be made almost anywhere. You can find patterns. contrast, shapes and textures anywhere, its up to you how to photograph them.

I plugged my Industar 61 L/Z and extension tubes onto my K10D and on to find some contrasty lines and shapes.



IMGP3021 by eduardodourado, on Flickr

I hope that sticks with our mates and partners, when we explain they can't possibly understand this terrible affliction that so many of us suffer.

I always said I could sell them at any time and recover the money... But kept buying new lenses as well... The moving finally did it. I've only got 7 lenses now

Is this one of those things where you use euphemisms to make things seem less serious than they are?
What's wrong with LBA?
You've got an addiction my friend, not a syndrome. Face the facts

It costs nothing (for the first 250 images I think), uploading is easy and quick, so not much harm. Theft wise, you'll be more exposed then on zenfolio, because there's a greater crowd, plus the apps that feed off flickr. But if you use small images there isn't really much harm.
There are groups you can belong to, so you can expose yourself to people who work on the same subjects (you can discuss as well), or people who look for your specific subject.
Overall its a pretty good display for your work, and a very good way to connect with your other social media outlets. Many prof togs use it.

I wouldn't expect much business from clients though, probably more potential from networking.